This force's namesake par
This force's namesake parameter is proportional to four pi squared times the amplitude of the potential according to the Tomlinson model. This force is ignored when solving the tautochrone and brachistochrone problems. Electric charge is transferred by this force in the triboelectric effect, and it is independent of [*] velocity, unlike the similar drag force. This force turns kinetic energy into heat, and the normal force is multiplied by this force's namesake static or kinetic coefficient to calculate the strength of this force. For 10 points, name this force that opposes the motion of two bodies in contact.
This force's namesake parameter is proportional to four pi squared times the amplitude of the potential according to the Tomlinson model.
friction